can you do calculations on a dataframe column with null value floats code example

Example 1: can a numpy array have missing entries

numpy.isnan(myarray).any()

Example 2: handling missing dvalues denoted by a '?' in pandas

# Making a list of missing value typesmissing_values = ["n/a", "na", "--"]df = pd.read_csv("property data.csv", na_values = missing_values)